b4.java

class Utils
{
    // Function to serialize an object and write it to a file

    public static void SerializeToFile(Object obj, String filename)
    {
        try
        {
            FileOutputStream file = new FileOutputStream(filename);
            ObjectOutputStream out = new ObjectOutputStream(file);

            // Serialization of the object to file

            System.out.println("Serializing " + obj.toString() + " to " + filename);
            out.writeObject(obj);

            out.close();
            file.close();
        }
        catch(Exception e)
        {
            System.out.println("Exception: " + e.toString());
        }
    }

    // Function to deserialize an object from a file

    public static Object DeserializeFromFile(String filename)
    {
        Object obj = new Object();

        try
        {
            FileInputStream file = new FileInputStream(filename);
            ObjectInputStream in = new ObjectInputStream(file);

            // Deserialization of the object to file

            System.out.println("Deserializing from " + filename);
            obj = in.readObject();

            in.close();
            file.close();
        }
        catch(Exception e)
        {
            System.out.println("Exception: " + e.toString());
        }

        return obj;
    }
}